26858225 has 6 divisors (see below), whose sum is σ = 33304230. Its totient is φ = 21486560.

The previous prime is 26858213. The next prime is 26858243. The reversal of 26858225 is 52285862.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6355441 + 20502784 = 2521^2 + 4528^2 .

It is not a de Polignac number, because 26858225 - 2⁸ = 26857969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 537140 + ... + 537189.

It is an arithmetic number, because the mean of its divisors is an integer number (5550705).

Almost surely, 2^26858225 is an apocalyptic number.

26858225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26858225 is a deficient number, since it is larger than the sum of its proper divisors (6446005).

26858225 is a wasteful number, since it uses less digits than its factorization.

26858225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074339 (or 1074334 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 26858225 is about 5182.4921611132. The cubic root of 26858225 is about 299.4739856428.

The spelling of 26858225 in words is "twenty-six million, eight hundred fifty-eight thousand, two hundred twenty-five".